The U.S. Army Corps of Engineers (USACE) is offering a funding opportunity titled "National Information Collaboration on Ecohydraulics (NICE): Numerical Models for Fish," aimed at developing advanced numerical modeling techniques to assess the impacts of navigation infrastructure on fish populations, particularly in relation to locks and dams within the Mississippi watershed. The initiative seeks to create accurate models that predict ecohydraulic outcomes and facilitate fish passage while ensuring navigation operations are maintained, thereby addressing the challenges posed by existing infrastructure on threatened and endangered fish species. This project is significant for enhancing ecosystem health and hydrologic connectivity, with a funding ceiling of $450,000 available for a one-year project duration. Interested non-federal partners of the Great Rivers Cooperative Ecosystem Studies Unit must submit a Statement of Interest by December 18, 2023, followed by a full proposal due by January 19, 2024; for further inquiries, contact Stacy Thurman at stacy.d.thurman@usace.army.mil.